Finding the Third Proportional to 578,470 and 1,200,677

Step by Step Solution

1. Step 1: Write the proportion equation
   578,470 : 1,200,677 = 1,200,677 : x
2. Step 2: Convert to fraction form
   578,470/1,200,677 = 1,200,677/x
3. Step 3: Cross multiply
   578,470x = 1,200,677 × 1,200,677
4. Step 4: Simplify right side
   578,470x = 1,441,625,258,329
5. Step 5: Solve for x
   x = 1,441,625,258,329/578,470
6. Step 6: Final answer
   x = 2,492,134.87